error 24 13 android studio faild to resolve -


i want add library project in android studio, gave me error no matter library is. error when want add library:

error:(24, 13) failed resolve: com.squareup.retrofit2:retrofit:2.1.0



enter image description here

do have sync project in online mode add library? sync project online work sync never ended.

open android studio, file -> settings , search offline find gradle category contain offline work.

disable there.

gradle offline work


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